The result of Kanubari constituency would be countermanded and re-poll announced soon as the winner Tingkhatra died on May 7 at a Gurgaon hospital following cardiac arrest, the sources said.

The BJP, which won nine and three seats during 2004 and 2009 assembly polls, managed to secure six seats -- Mariyang-Geku, Nari-Koyu, Nampong, Bomdila, Raga and Ziro-Hapoli and was leading in four seats.

The regional Peoples' Party of Arunachal which had won four seats in 2009, managed to win three seats -- Bordumsa-Diyun, Khonsa East and Khonsa West -- and was leading in two seats.

PPA chief ministerial candidate Laeta Umbrey was defeated by new comer Muchu Mithi of the Congress in Roing constituency.

The NCP which bagged five seats in the last election failed to open its account this time.

Tsering Tashi, second son of former chief minister Dorjee Khandu won the Tawang constituency as an Independent.